I need to know if its really true, that since I have five HLA (human leukocyte antigen) matches with my husband, that we will not be able to have a second child. A reproductive immunologist told us the HLA matches are serious . However I have been pregnant twice before, with one live birth. In spite of the matches. He said I will need IVIG, neupogen and other expensive drugs to get & stay pregnant. Its not that I think he is lying, I just want a second opinion on if I really need all those drugs.